Stylus



s. H. COLE.

STYLUS.

(No Model.)

No. 417,231. Patented Dec. 1'7, 1889.

UNITED STATES PATENT OFFICE.

SPENCER H. COLE, OF ATLANTA, GEORGIA.

STYLUS.

SPECIFICATION forming part of Letters Patent No. 417,231, dated December 17, 1889.

Application filed March 23, 1889. Serial No. 304,520. (No model.)

To all whom it may concern.-

Be it known that I, SPENCER H. COLE, a citizen of the United States, and a resident of Atlanta, in the county of Fulton and State of Georgia, have invented certain new and useful Improvements in Styluses; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to the improvement of the class of styluses which make more than a single mark or impression,the object being .to render a stylus of that class operative and durable, but principally to make them capable of drawing two or more lines of uniform,

size and the desired distance apart.

The invention consists, therefore, of a head in which are elastically held points so secured and cushioned as to be reliable and A durable and to press in a uniform manner elastically on the surface being marked or impressed, the details of all of which will be hereinafter fully set forth, and the parts thought to be new pointed out in the claims.

In the accompanying drawings, Figure lis a side elevation of the device, showing the head or holder and as much of the points as would project from the opening on the end of said head; and Fig. 2 is an edge view of the same. Fig. 3 is a side elevation of the head with a portion of the casing broken away to show the interior arrangement of parts. Fig. 4 is a longitudinal section of said head, showing the form and position of said points as well as the preferred manner of securing them in said head, and also the position of the elastic material or spring. Fig. 5 is a side View of the points, Fig. 6 is an edge view of the same, and Fig. 7 is a section showing the contour of the said points.

In the figures the device is shown as a fivepointed stylus, such as would be adapted to use with many of the'processes for printing music, for drawing the musical stafi,or scratching or impressing the same on any desired material.

In the figures, like reference-marks indieating corresponding parts in the several views, A is the head; B, the handle,which maybe secured thereon in any approved manner; O, the points, and D the spring or elastic substance to give resilience to the points.

The head A may be of any desired form and may be cast or shaped in one piece, or, if more convenient or desirable, it may be in two parts,which latter manner would be preferable only on account of convenience in casting or forming the same. The points 0 are pivoted in the head in any desired manner, the preferred form of which is, however, as shown, and consists in a pin passing through the sides of the head A at the desired point and through holes in the inner ends of the said points. It is considered essential that they be pivoted in such a manner as to move freely and yet have no lateral play, as any lateral motion would cause the lines to diverge and come together under pressure, which. would make faulty work. This side motion has been one of the points of disadvantage in multiple-point styluses as heretofore constructed, to remedy which fault is one of the objects of this invention. The points may be of any desired form in cross-section; but I prefer substantially the form Sl1OWl1,ll12LSlI1L1(;l1 as it gives a neat appearance, and the sides of said points which come in contact with each other may be milled and thus be made to present aperfect contact, and the edges left rounding, oval, or otherwise ridged by the process will more easily indent the elastic material when rubber is used,which gives greater softness where soft elasticity is required, and does not detract from the compression of the entire surface of the rubber when a great pressure is required from the stylus. The points would be almost rigid under light pressure if the full face-bearing of the points were made to press upon said elastic material on slight pressure. The elastic material shown consists of a piece of rubber or analogous mateterial of the desired form seated in a recess in the side of the interior of the head A. This spring may be of many forms, each answering the full purpose in the operation of the device; hence I do not confine myself to this specific construction or material, the obtaining of elasticity of the required tension being the only object to be considered in the construotion.

Any slight inequality in the surface operated upon will be compensated for by the individual and independent elasticity which is given to the points by the elastic material, and this will be Without a change being perceptible in the size of any of the marks While passing the said obstacle.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a stylus, the head A, the points C,pivoted in a line at their upper ends therein and projecting from the same, and the spring D, seated on the inside of the head and near its mouth to form a cushion between the points and the side of the head, substantially as and for the purpose set forth.

2. In a stylus, the head A, the points 0, pivoted in a line at their upper ends Within said head and in close contact, and having the portions of their surfaces which come in contact With each other milled, for the purpose set forth, and the elastic cushion D,'placed between the points and the side of the head, as set forth.

In testimony whereof I hereunto affix my signature in presence of tWo Witnesses.

SPENCER H. COLE.

Witnesses:

O. P. TAYLOR, A. P. W001). 

